John Deere POWERTECH 4045 - Manual (Page 215)

Troubleshooting
OURGP12,00001EA –19–27JUL06–2/2
8. When complete, turn ignition “OFF”, remove jumper
wire, and recap the diagnostic reader connector.
As an example, if an engine had an active DTC 18 and
stored DTC 53, the flashing sequence would be: flash
three times...short pause...flash two times...long
pause...flash one time...short pause...flash eight
times...long pause...flash three times...short pause...flash
three times...long pause...flash five times...short
pause...flash three times.
45-19
080706
PN=213